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Regulatory Capital Requirements (Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios) (Details) $ in Thousands | Jun. 30, 2023 USD ($)
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Stifel Financial Corp. [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 3,999,189
Tier 1 capital, Actual Ratio | 0.173
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,389,876
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,853,168
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.080
Total capital, Actual Amount | $ 4,211,564
Total capital, Actual Ratio | 0.182
Total capital For Capital Adequacy Purposes, Amount | $ 1,853,168
Total capital For Capital Adequacy Purposes, Ratio | 0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 2,316,460
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.100
Tier 1 leverage, Actual Amount | $ 3,999,189
Tier 1 leverage, Actual Ratio | 0.111
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 1,441,620
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,802,026
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.050
Stifel Financial Corp. [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 3,314,189
Tier 1 capital, Actual Ratio | 0.143
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 1,042,407
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,505,699
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065
Stifel Bank & Trust [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,513,202
Tier 1 capital, Actual Ratio | 0.108
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 838,061
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,117,415
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.080
Total capital, Actual Amount | $ 1,640,892
Total capital, Actual Ratio | 0.117
Total capital For Capital Adequacy Purposes, Amount | $ 1,117,415
Total capital For Capital Adequacy Purposes, Ratio | 0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,396,768
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.100
Tier 1 leverage, Actual Amount | $ 1,513,202
Tier 1 leverage, Actual Ratio | 0.075
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 802,647
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 1,003,309
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.050
Stifel Bank & Trust [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 1,513,202
Tier 1 capital, Actual Ratio | 0.108
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 628,546
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 907,899
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065
Stifel Bank [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 639,967
Tier 1 capital, Actual Ratio | 0.124
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 308,757
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.060
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 411,677
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.080
Total capital, Actual Amount | $ 670,164
Total capital, Actual Ratio | 0.13
Total capital For Capital Adequacy Purposes, Amount | $ 411,677
Total capital For Capital Adequacy Purposes, Ratio | 0.080
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 514,596
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.100
Tier 1 leverage, Actual Amount | $ 639,967
Tier 1 leverage, Actual Ratio | 0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount | $ 361,055
Tier 1 leverage For Capital Adequacy Purposes, Ratio | 0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 451,319
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.050
Stifel Bank [Member] | Common Stock [Member] |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |
Tier 1 capital, Actual Amount | $ 639,967
Tier 1 capital, Actual Ratio | 0.124
Tier 1 capital For Capital Adequacy Purposes, Amount | $ 231,568
Tier 1 capital For Capital Adequacy Purposes, Ratio | 0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount | $ 334,487
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio | 0.065

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